3a-7+4a=-2-a

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Solution for 3a-7+4a=-2-a equation:


Simplifying
3a + -7 + 4a = -2 + -1a

Reorder the terms:
-7 + 3a + 4a = -2 + -1a

Combine like terms: 3a + 4a = 7a
-7 + 7a = -2 + -1a

Solving
-7 + 7a = -2 + -1a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add 'a' to each side of the equation.
-7 + 7a + a = -2 + -1a + a

Combine like terms: 7a + a = 8a
-7 + 8a = -2 + -1a + a

Combine like terms: -1a + a = 0
-7 + 8a = -2 + 0
-7 + 8a = -2

Add '7' to each side of the equation.
-7 + 7 + 8a = -2 + 7

Combine like terms: -7 + 7 = 0
0 + 8a = -2 + 7
8a = -2 + 7

Combine like terms: -2 + 7 = 5
8a = 5

Divide each side by '8'.
a = 0.625

Simplifying
a = 0.625

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